//
//  VisitorLoginView.swift
//  Sina
//
//  Created by yuanyuan on 15/12/17.
//  Copyright © 2015年 yuanyuan. All rights reserved.
//

import UIKit

//定义协议
@objc protocol VisitorLoginViewDelegate:NSObjectProtocol {
    //声明协议方法
    //  用户将要登录
    //    optional是oc中的关键字
     optional func userWillLogin()
      func userWillRegister()
    
}



class VisitorLoginView: UIView {
    //声明代理 代理  要用weak 属性关键字
    weak var visitorViewDelegate:VisitorLoginViewDelegate?
    //    对外提供设置访客视图信息的方法
    func setupInfo(tipText:String,imageName:String?){
        tipLabel.text = tipText
        if let name = imageName {
            //        不是首页
            circleView.image = UIImage(named: name)
//            隐藏大房子
            largeIcon.hidden = true
//            将circleView移动到视图最顶层
            bringSubviewToFront(circleView)
            
            
        }else {
//           就是首页开始动画
            startAnimation()
           
            
        }
        
    }
    
//    开始动画设置
    private func startAnimation() {
//    基本动画
        let anim = CABasicAnimation(keyPath: "transform.rotation")
//        设置动画属性
        anim.repeatCount = MAXFLOAT
        anim.duration = 20.0
        anim.toValue = 2*M_PI
//        当动画完毕或者页面失去活跃状态动画不移除图层 
        anim.removedOnCompletion = false
//        添加动画
        circleView.layer.addAnimation(anim, forKey: nil)
    
    }
    
    
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
        
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    private func setupUI(){
        addSubview(circleView)
        addSubview(backView)
        addSubview(largeIcon)
        addSubview(tipLabel)
        addSubview(registerBtn)
        addSubview(loginBtn)
        
        
        
        
        //    对子视图进行约束
        //    约束需要添加到父视图上
        //    在使用手码添加约束时需要屏蔽frame布局
        for subview in subviews {
            
            subview.translatesAutoresizingMaskIntoConstraints = false
            
        }
        //        view1.attr1 = view2.attr2 * multiplier + constant
        //        自动布局原则 : 先固定好一个视图  其他所有视图 都应该相对于一个已经固定好的视图添加约束
        
        //        添加大图的约束
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterX, relatedBy: .Equal, toItem: self, attribute: .CenterX, multiplier: 1, constant: 0))
        
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1, constant: -60))
        //        添加圆圈的约束
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterX, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterY, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterY, multiplier: 1, constant: 0))
        //       文案的约束
        addConstraint(NSLayoutConstraint(item:tipLabel , attribute: .CenterX, relatedBy: .Equal, toItem: circleView, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Top, relatedBy: .Equal, toItem: circleView, attribute: .Bottom, multiplier: 1, constant: 16))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 230))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 40))
        
        //        登陆按钮的约束
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Left, relatedBy: .Equal, toItem: tipLabel, attribute: .Left, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant:100))
        addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        //        注册按钮
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Right, relatedBy: .Equal, toItem: tipLabel, attribute: .Right, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        //     //设置背景视图的约束 可视化的布局语言
        //OC 中可选项 一般使用 按位 或枚举选项  swift中直接指定数组
        //metrics:约束数值字典 [String: 数值],
//        背景视图的约束
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views: ["backView":backView]))
   addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regn]", options: [], metrics: nil, views: ["backView":backView,"regn":registerBtn]))
        
        //设置视图的背景颜色
        backgroundColor = UIColor(white: 0.93, alpha: 1)
        
//        登陆注册按钮的点击事件
        registerBtn.addTarget(self, action: "registerBtnDidClick", forControlEvents: .TouchUpInside)
        loginBtn.addTarget(self, action: "loginBtnDidClick", forControlEvents: .TouchUpInside)
        
        
    }
    
 //MARK:按钮监听事件
    @objc private func registerBtnDidClick() {
//  代理调用协议方法  如果是nil  就不会执行
        visitorViewDelegate?.userWillRegister()
    
    
    }
    @objc private func loginBtnDidClick() {
    
//    判断代理是否为空  && 是否响应方法UserWillLogin?表示的是判断是否可以响应方法  
       
        visitorViewDelegate?.userWillLogin?()
        
    
    
    }
    
    
    
    
    
    //    懒加载子视图
    private lazy var backView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    private lazy var largeIcon:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_image_message"))
    private lazy var circleView:UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_image_smallicon"))
    
    private lazy var tipLabel:UILabel = UILabel (title: "关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜", color: UIColor.darkGrayColor(), fontSize: 14)
    
//    {
//        let l = UILabel()
//        l.text = "关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜"
//        l.textColor = UIColor.darkGrayColor()
//        l.textAlignment = .Center
//        l.font = UIFont.systemFontOfSize(14)
//        l.numberOfLines = 0
//        l.sizeToFit()
//        return l
//        
//    }()
    
    private lazy var registerBtn:UIButton = UIButton(title: "注册", backImageName: "common_button_white_disable", fontSize: 14, color: themeColor)
//    {
//        let btn = UIButton()
//        btn.setBackgroundImage(UIImage(named:"common_button_white_disable"), forState: .Normal)
//        btn.setTitle("注册", forState: .Normal)
//        btn.titleLabel?.font = UIFont.systemFontOfSize(14)
//        btn.setTitleColor(themeColor, forState: .Normal)
//        btn.sizeToFit()
//        return btn
//        
//    }()
    
    
    private lazy var loginBtn:UIButton = UIButton(title: "登陆", backImageName: "common_button_white_disable", fontSize: 14, color: UIColor.darkGrayColor())
//    {
//        
//        let btn = UIButton()
//        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
//        btn.setTitle("登陆", forState: .Normal)
//        btn.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
//        btn.titleLabel?.font = UIFont.systemFontOfSize(14)
//        
//        btn.sizeToFit()
//        return btn
//        
//        
//    }()
    
    
}
